Appl Of Ms Excel In Analytical Chemistry
2nd Edition
ISBN: 9781285686691
Author: Crouch
Publisher: Cengage
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
error_outline
This textbook solution is under construction.
Students have asked these similar questions
4. (a) What is the difference between adding subscript 2 to the end of the formula
for CO to give CO2 and adding a coefficient in front of the formula to give 2CO?
(b) Is the following chemical equation, as written, consistent with the law of
conservation of mass?
3Mg(OH)2 (s) + 2H3PO4 (aq)
Why or why not?
Mg3(PO+)2 (s) + H2O (I)
(a) Calculate the molar mass of ammonium nitrate, NH4NO3. (b) What is the mass percent of nitrogen in ammonium nitrate? (c) How many kilograms of nitrogen are present in a 10.0-lb bag of ammonium nitrate? (d) How many kilograms of ammonium nitrate contain 1.00 lb of nitrogen? (1 lb = 453.6 g)
(a) A compound MX2 is formed from the M²+ and X ions. The compound contains 86.8% of X by
mass. In a reaction, a 0.96 g M²+ ion reacts completely with 0.079 mol X¯ ion. Determine the
identity of M²+ and X.
(b) In a reaction, the mixture of 13.4 g of calcium fluoride (CaF₂) and 11.1 g of sulfuric acid
(H₂SO4) was heated to give off gaseous hydrogen fluoride (HF). The reaction is as shown:
CaF2 (s) + H₂SO4 (1) → 2HF (g) + CaSO4 (s)
Determine the maximum amount (grams) of hydrogen fluoride that can be obtained.
(c) A compound containing barium (Ba) and oxygen, weighed 2.018 g, was dissolved to produce
barium ions in solution. The barium ions are then separated from the solution by precipitating
method. The precipitate formed was 3.018 g of BaCrO4. Determine the chemical formula of
the compound.
(d) For the following reaction, determine the mass of sulfur would be needed to obtain 80.0 g of
CS₂. The percent yield of the reaction is consistently 92%.
CH4 (g) + 4S (g) → CS2 (g) + 2H₂S (g)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- 4-102 Aspartame, an artificial sweetener used as a sugar substitute in some foods and beverages, has the molecular formula C14H18N2O5. (a) How many mg of aspartame are present in 3.72 × 1026 molecules of aspartame? (b) Imagine you obtain 25.0 mL of aspartame, which is known to have a density of 1.35 g/mL. How many molecules of aspartame are present in this volume? (c) How many hydrogen atoms are present in 1.00 mg of aspartame? (d) Complete the skeletal structure of aspartame, where all the bonded atoms are shown but double bonds, triple bonds, and/or lone pairs are missing. (e) Identify the various types of geometries present in each central atom of aspartame using VSEPR theory. (f) Determine the various relative bond angles associated with each central atom of aspartame using VSEPR theory. (g) What is the most polar bond in aspartame? (h) Would you predict aspartame to be polar or nonpolar? (i) Is aspartame expected to possess resonance? Explain why or why not. (j) Consider the combustion of aspartame, which results in formation of NO2(g) as well as other expected products. Write a balanced chemical equation for this reaction. (k) Calculate the weight of C02(g) that can be prepared from 1.62 g of aspartame mixed with 2.11 g of oxygen gas.arrow_forward4-78 (Chemical Connections 4A) How does fluoride ion protect the tooth enamel against decay?arrow_forward4-53 A typical deposit of cholesterol, C27H46O, in an artery might have a mass of 3.9 mg. How many mol ecules of cholesterol are in this mass?arrow_forward
- You take 1.00 g of an aspirin tablet (a compound consisting solely of carbon, hydrogen, and oxygen), burn it in air, and collect 2.20 g CO2 and 0.400 g H2O. You know that the molar mass of aspirin is between 170 and 190 g/mol. Reacting 1 mole of salicylic acid with I mole of acetic anhydride (C4H6O3) gives you 1 mole of aspirin and 1 mole of acetic acid (C2H4O2). Use this information to determine the molecular formula of salicylic acid.arrow_forwardChlorine exists mainly as two isotopes, 37Cl and 33Cl. Which is more abundant? How do you know?arrow_forwardPhosphoric acid, H3PO4, can be prepared by the reaction of phosphorus(V) oxide, P4O10, with water. 14P4O10(s)+32H2O(l)H3PO4(aq);H=96.2kJ What is H for the reaction involving 1 mol of P4O10? P4O10(s)+6H2O(l)4H3PO4(aq)arrow_forward
- The active ingredient in Pepto-Bismo® (an over- the-counter remedy for an upset stomach) is bismuth sub-salicylate, C7H5BiO4. Analysis of a 1.7500-g sample of Pepto-Bismol yields 346 mg of bismuth. What percent by mass is bismuth subsalicylate in the sample? (Assume that there are no other bismuth-containing compounds in Pepto-Bismol.)arrow_forwardTungsten (W) metal, which is used to make incandescent bulb filaments, is produced by the reaction WO3+3H23H2O+W How many grams of H2 are needed to produce 1.00 g of W?arrow_forward(c) What is the mass, in grams, of 5.20 x 1023 molecules of aspirin, CgH3O4? (d) What is the molar mass of a particular compound if 0.100 mol weighs 6.64 g? g/molarrow_forward
- Answer true or false. (b) Avogadro’s number, to three significant figures, is 6.02 x 1023 formula units per mole. (d) 1 mol of H2O contains 3 x 6.02 x 1023 formula units. (i) 1 mol of ibuprofen, C13H18O2, contains 33 mol of atoms.arrow_forwardThe molecular formula of allicin, the compound responsible for the characteristic smell of garlic, is C6H10OS2. (a) What is the molar mass of allicin? (b) How many moles of allicin are present in 5.00 mg of this substance?arrow_forward(a) What is the difference between adding subscript 2 to the end of the formula for CO to give CO2 and adding a coefficient in front of the formula to give 2CO? (b) Is the following chemical equation, as written, consistent with the law of conservation of mass? 3Mg(OH)2 (s) + 2H3PO4 (aq) ------> Mg3(PO4)2 (s) + H2O (l) Why or why not?arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning
Chemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning
Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning
Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
Chemistry: Principles and Practice
Chemistry
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Cengage Learning
Chemistry for Engineering Students
Chemistry
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Cengage Learning
Introduction to General, Organic and Biochemistry
Chemistry
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning
Step by Step Stoichiometry Practice Problems | How to Pass ChemistryMole Conversions Made Easy: How to Convert Between Grams and Moles; Author: Ketzbook;https://www.youtube.com/watch?v=b2raanVWU6c;License: Standard YouTube License, CC-BY